Oar-lock.



A. L. SH-EARS.

OAR LOOK. APPLICATION FILED SEPT. 21, 1912.

1,061,783, Patented May 13, 1913.

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' WITNESSES UNITED STATES PATENT UFFIGE.

ALBERT L. SHEARS, OF SEATTLE, WASHINGTON.-

OAR-LOCK.

To all whom it may concern Be it known that I, ALBERT L. SI-IEARS, citizen of the United States, residing at Seattle, in the county of King and State of ashington, have invented new and useful Improvements in Oar-Locks, of which the following is a specification.

My present invention pertains to oar locks, and consists in the peculiar and ad vantageous construction, hereinafterclaimed and described, whereby the car lock may be freely moved abut its axis without liability of displacement during the manipulation of an car, and yet by turning the oar lock to a certain extent the same can be quickly and entirely lifted and separated from its supporting base. i

The invention will be fully understood from the following description and claim when the same are read in connection with the drawings accompanying and forming part of this specification, in which:

Figure 1 is an elevation illustrating the oar look as properly positioned to secure it to the supporting base. Fig. 2 is a transverse section taken in the plane indicated by the line 22 of Fig. 1. Fig. 3 is a horizontal section taken in the plane indicated by the line 3-3 of Fig. 1, looking downward. Fig. 4 is a view of the oar lock as it appears when lifted and separated from the supporting base.

Similar numerals of reference designate corresponding parts in all of the views of the drawings.

The supporting base 1 of my improvement may form part of the gunwale of a rowboat or may be fixed in permanent manner to the gunwale in the discretion of the person practising my invention and without affecting the same. The said base 1 is pro vided at 2 with a vertical smooth-bore socket of circular form in cross-section, as shown. Suitably fixed on the base 1 is the retaining member 3 of my improvement, which is preferably of metal. The said retaining member is in the form of a plate that rests solidly on the base 1; and it is provided in its inner edge with a recess 4, and is also provided with a semi-circular dome portion 5 which forms the outer end wall of the recess i and rests over the outer portion of said recess and is provided in its inner and straight edge 6 with a semi-circular notch 7 that is coincident with the outer half of the socket 2 in the base 1.

Specification of Letters Patent.

Application filed September 21, 1912.

Patented May 13, 1913.

Serial No. 721,597.

When the supporting base 1 is formed of wood, I prefer to countersink a wear plate 8 of metal in the upper side of said base around the socket 2 and under the recess l. and dome portion 5 of the retaining member 3, as shown. I do not desire, however, to be understood as confining myself to the employment of the said wear plate inasmuch as it is in the nature of an expedient and may be omitted when desired, without affecting my invention.

The upper portion 9 of the car lock constructed in accordance with my invention may be and preferably is of the conventional bifurcated type. From the base of the said upper portion 9 depends an integral stem 10, of circular form in cross-section, adapted to rest and turn in the semicircular notch of the dome portion 5, and at the point 11 the stem is reduced to provide a portion 12 adapted to rest in the aperture of the wear plate and the socket 2 of the base 1, the abutment at the point 11 bearing on the wear plate or on the upper side of the supporting base as the case may be. Formed integral with the stem 10 is a lateral enlargement 13, of semi-circular form in outline, the underside of which is flat and flush with the abutment 11 and the upper side of which conforms in configuration to and is adapted to snugly occupy the space between the wear plate and the underside of the dome portion 5 of the retaining member.

W'hen the our lock is arranged in the supporting base and retaining member as shown in Figs. 1, 2 and 3, it will be manifest that the oar lock may be turned to a considerable extent about its axis, as during rowing, without dis 'ilacement or disconnection of the oar look from the supporting base and the retaining member; also, that the blade of the oar in the car lock may be rested on the bow or stern of the row-boat without liability of the oar lock being displaced or disconnected. lVhen, however, it is desired to take the oar lock from the boat to prevent theft. of the oar lock, it is simply necessary to turn the oar lock about its axis until the semi-circular enlargement 13 is entirely without the dome portion 5 and between the straight edge (5 thereof and the inner open end of the recess in the retaining member, when the oar lock may be readily lifted and entirely separated from the supporting base and the retaining member. To

place and secure the oar lock in the supporting base and the retaining member the said manipulation is reversed.

Having described my invention, What I claim and desire to secure by Letters-Patent, is:

The combination with a supporting base having a vertical socket of circular form in cross-section, and a retaining member fixed on said base and having a recess in its inner edge and also having a semi-circular dome portion resting over the outer portion of the recess and closing the outer end thereof and having an inner straight edge and a semi-circular notch formed in said edge and arranged coincident With the outer half of the socket in the supporting base; of an oar lock entirely separable by lifting from the supporting base and the retaining member and having stem portions of circular form in cross-section disposed in the socket of the supporting base and the semicircular notch of the dome portion, respectively, and also having on its stein a lateral semi-circular enlargement shaped to snugly occupy the space beloW-the dome portion and swing horizontally in said space and also swing into and out of the same.

In testimony whereof I have hereunto set my hand in presence of two subscribing Witnesses.

ALBERT L. SHEARS.

itnesses Q HARRIS EMMoNs, WV. l/V. MONTGOMERY.

Copies of this patent may be obtained for five cents each, by addressing the Gommissioner of Patents, Washington, D. G. 

